Electrical characteristics
STM32L151xC STM32L152xC
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DocID022799 Rev 10
6.3.18 DAC
electrical specifications
Data guaranteed by design, not tested in production, unless otherwise specified.
Table 59. DAC characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
V
DDA
Analog supply voltage
1.8
-
3.6
V
V
REF+
Reference supply
voltage
V
REF+
must always be below
V
DDA
1.8
-
3.6
V
REF-
Lower reference voltage
V
SSA
I
(1)
Current consumption on
V
REF+
supply
V
REF+
= 3.3 V
No load, middle code (0x800)
-
130
220
µA
No load, worst code (0x000)
-
220
350
I
DDA
Current consumption on
V
DDA
supply
V
DDA
= 3.3 V
No load, middle code (0x800)
-
210
320
No load, worst code (0xF1C)
-
320
520
R
L
(2)
Resistive load
DAC output buffer ON
5
-
-
k
Ω
C
Capacitive load
-
-
50
pF
R
O
Output impedance
DAC output buffer OFF
12
16
20
k
Ω
V
DAC_OUT
Voltage on DAC_OUT
output
DAC output buffer ON
0.2
-
V
DDA
– 0.2
V
DAC output buffer OFF
0.5
-
V
REF+
–
1LSB
mV
Differential non
linearity
(3)
C
L
≤
50 pF, R
L
≥
5 k
Ω
DAC output buffer ON
-
1.5
3
LSB
No R
L
, C
L
≤
50 pF
DAC output buffer OFF
-
1.5
3
INL
Integral non linearity
(4)
C
L
≤
50 pF, R
L
≥
5 k
Ω
DAC output buffer ON
-
2
4
No R
L
, C
L
≤
50 pF
DAC output buffer OFF
-
2
4
Offset
Offset error at code
0x800
(5)
C
L
≤
50 pF, R
L
≥
5 k
Ω
DAC output buffer ON
-
±10
±25
No R
L
, C
L
≤
50 pF
DAC output buffer OFF
-
±5
±8
Offset1
Offset error at code
0x001
(6)
No R
L
, C
L
≤
50 pF
DAC output buffer OFF
-
±1.5
±5